d889 黑傑克

#include<stdio.h>
#include<stdlib.h>
int main(i)
{
    int n,count=0;
    int number[105];
    scanf("%d",&n);
    for(i=0;i<n;i++)scanf("%d",&number[i]);
    if(number[0]>30) printf("30\n");
    else
    {
        count=number[0]+4;
        for(i=1;i<n;i++)
        {
            if(number[i]<=count) count+=5;
            else if(number[i]-count>30) break;
            else if(number[i]>count) count=number[i]+4;
        }
        printf("%d\n",count+31);
    }
}